reversed=1и оставить только строчку номер 15 в запросе
limit=1получим запрос вида
https://iss.moex.com/iss/engines/futures/markets/forts/securities/SiZ7/trades.json?reversed=1&limit=1Вариант автоматизации упрощенно:
using System;
using System.Net;
using System.IO;
using System.Text;
namespace GetLastPrice
{
class Program
{
static void Main(string[] args)
{
string newLine;
string[] lastLine;
string link = "https://iss.moex.com/iss/engines/futures/markets/forts/securities/SiZ7/trades.json?reversed=1&limit=1";
int count = 0;
for (;;) {
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(link);
request.ContentType = "text/plain; charset=utf-8";
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
using (Stream responseStream = response.GetResponseStream())
{
StreamReader sr = new StreamReader(responseStream, Encoding.UTF8);
while ((newLine = sr.ReadLine()) != null) {
if (count == 14) {
if (newLine =="") break;
else {
lastLine = newLine.Split(",");
Console.WriteLine("Volume is " + lastLine[6] +" at Price " + lastLine[5]);
}
}
count++;
}
}
count = 0;
response.Close();
}
}
}
}https://iss.moex.com/iss/engines/futures/markets/forts/securities/SiZ7/trades.json— если добавить
?start=0&limit=100то начиная с первой сточки (номер ноль) получим только первые 100 сделок:
https://iss.moex.com/iss/engines/futures/markets/forts/securities/SiZ7/trades.json?start=0&limit=100следующие 100 сделок:
?start=100&limit=100Минутки получить можно так:
http://iss.moex.com/iss/engines/futures/markets/forts/boards/RFUD/securities/SiZ7/candles.json?from=2017-11-08&till=2017-11-08&interval=1&start=0Если заменить .json --> .csv, то скачивается файл:
http://iss.moex.com/iss/engines/futures/markets/forts/boards/RFUD/securities/SiZ7/candles.json?from=2017-11-08&till=2017-11-08&interval=1&start=0Программный пример:
using System;
using System.Net;
using System.IO;
namespace GetDataSmpl
{
class Program
{
static void Main(string[] args)
{
string link = "https://iss.moex.com/iss/engines/futures/markets/forts/securities/SiZ7/trades.json?start=0&limit=10";
string dataLine;
int count = 0;
using (WebClient wc = new WebClient())
{
Stream stream = wc.OpenRead(link);
StreamReader sr = new StreamReader(stream);
while ((dataLine = sr.ReadLine()) != null) {
if (count >= 14 && count <= 23) Console.WriteLine(dataLine);
count +=1;
}
stream.Close();
}
}
}
}